Trunk-lock.



A. -ANTIFAEV.

TRUNK LOCK.

APPLIOATION HLED'MAY 4, 1912.

Patented Nov. 5, 1912.

TE s:

TRUNK-LOCK.

reaaise.

Specification of Letters Patent.

Patented Nov.. 5, 1912.

Application le. May 4, 1912. Serial No. 695,248.

To all 'whom it may concern:

Be it known that l, ALnxis ANTIIAEV, 1-

subject of the King of England, residing at tion, reference being had tothe accompany-r ing drawings.

rIliis invention relates to new and useful improvements in the art oflocks and latches and more particularly to a trunk or suit case lock,and my object is to provide a simple and efficient device of thischaracter which will be positive in operation and is not adapted to heunlocked except by one familiar with the operation thereof.

A further object of the invention resides in providing a device whereina double turn of the key is required in order to entirely release theengagement of the latch plate of the lock proper from the keepers of theplate on the trunk top. y

A further object of the invention resides in providing a spring-memberhaving en.

gagement with the latch plate to retain the latter in various adjustedpositions, and still another object resides in providing a pivoted dogmember on the latch plate, which dog member is directly operated upon byan additional member. V

/Vith these and other objects in view, the invention consists in thenovel features of construction, combination and arrangement of parts aswill be hereinafter referred to and more particularly pointed out in thespecification and claims.

In the accompanying drawing forming a part of this application, Figure 1is a front elevation of the lock with the cover of the casing thereofremoved. Fig. 2 is a vertical transverse section through the device, asseen on line 2--2 Fig. 1. Fig. 3 is a horizontal section as seen on line3-3, Fig. 1. Fig. e

is a perspective view of the latch plate removed; and Fig. 5 is asimilar view of the pivoted dog removed.

In describing my invention, I shall refer to the drawing in .whichsimilar reference characters designate corresponding parts throughoutthe several `views' and in which 1 indicates a plate, the upper portionof which is bent at right angles to form a lateral extension 2 thereon,while the one face of said plate is provided with an arcuate flange 3 towhich may be secured a top or key-hole plate 4f. These pai'ts form asubstantial casing or the like for my improved lock, which casing isadapted to be mounted in the body of a trunk or the like and anadditional plate 5 provided with depending keepers 6 thereon isadaptedto be 'secured in the usual manner to the cover of a trunk sothat when said cover is disposed to its lowered and closed position,said keepers may be disposed through the openings 7 in the extension 2of the plate 1.

Extending horizontally in the upper portion of the face ofthe plate 1having the flange 3 thereon is an additional flange or `guide strip 8and a latch plate 9 is provided on the upper side edges thereof withangularly bent guide and spacing lugs 10, said lugs resting on theflange or guide strip S and spacing the latch plate proper from theplate l. rilhis latch plate has the upper edge thereof provided withintegral hook or hasp portions 11 adapted for engagement .with thedepending keepers 6 of the additional plate 5, when said keepers aredisposed through the openings-in the extension of the plate 1 and-saidlatch plate 9 is slidable on the plate 1.

Coiled about a stud or pin 12 is one end of a leaf spring 13, saidspring being disposed across the face of the plate 1 to pen `mit thelower edge thereof to rest in`en- `gagement with an additionalspacinglug 14 on the lower edge of the latch plate 9 and t-he extended-portionof said spring 13 is provided with a. pair of notches 15 and 16 whichare arranged at predetermined points thereon and are adapted to receivetherein v.the lug 14 as the latch plate 9 is moved on the plate 1. Thesenotches or the like 15 and 16 are so arranged that when the latch plate9 is moved to its extreme ef fective posit-ion, the spacing lug 14 willengage in the outer notch 15, while when in its total ineffectiveposition, said lug will engage with the inner notch 16. From thisconstruction, it will be seen that the extended portion of the spring 13bearing downwardly upon the spacing lug 14 will normally retain the lugson said latch plate in engagement with the horizontal strip 8 to retainsaid latch plate in sliding position on the plate 1.

The lower edge of the latch plate 9 is provided with a pair of concaverecesses or the like 17 and 18, the walls of which are arcuatelydesigned and meet in a central point 19 and pivotally carried on a stud2O on the latch plate 9, is an arcuate or substantially crescent-shapeddog 21. This dog is pivoted about centrally of its outer surface, theinner surface of the same alining for a portion of its length with thewall of the cavity 18, while the one end of said dog is normally adaptedto project below the wall of said cavity as shown at 22. Formed on t-heouter surface of the dog 21 at the pivotal point thereof is a conveXedprojection 23 which is received in a concave cavity 21 formed in thelower edge of the extended portion of a leaf spring 25, which leafspring has the opposite end thereof coiled about a stud 26 on the outerface of the latch plate 9. This spring 25 normally retains said dog 21in a position, as described above, that is, so that the greater portionof the inner surface of said dog alines with the wall of the cavity 18and the one end 22 thereof projects slightly below said wall. Thisprojected end of the dog in one position of the latch plate is adaptedto be engaged by a key, to be hereinafter described, whereby said latchplate may be moved within the casing and the fact that this dog is heldin position by means of a spring, will permit the same to yield slightlyunder pressure and thereby prevent undue wea-r and at the same timeprovide a more easily operating device than heretofore known.

Formed on the plate 1 below the spring 13, is a key post 27 which isadapted to receive the free end of a key 28, said key having a bit 29thereon which is adapted to engage the lower edge of the spring. 18, assaid key is turned to force said spring upwardly out of contact with thelower lug 14C on said spacing plate and also adapted for engagement withthe projected end of the dog 21 and the walls of said cavities 17 and 18to slide said latch plate on the plate 1.

Assuming that the latch plate is in its effective position and engagedwith the depending keepers 6 of the additional plate 5 so that the topof a trunk, for which said lock is particularly adapted for use, is inlocked engagement with the body thereof, should it be desired to openthe trunk, the key is first inserted in the lock and turned counterclock-wise. The bit 29 on said key will first contact with the loweredge of the spring 13 which projects below the wall of the latch plate 9at the cavities 17 and 18 and by a continued turning of the key, thespring 13 will be forced upwardly out of engagement with the lowerspacing lug 14, it being understood that said lug had been in engagementwith the notch 15 and said bit will then contact with the projected end22 of the dog 21. The engagement of the projection of the key with thedog 21 may cause the latter to swing slightly on its pivot and yield'under the tension of the spring 25,

but on the continued turning of the key will also cause the latch plate9 to be moved horizontally on the plate 1. The one turn of the key,while moving the latch plate 9 toward its ineffective position will notbe sufficient to completely disengage the hook or hasp portions 11 fromtheir engagement with the keepers 6 and upon a second turn of the key,the bit 29 of said key will contact with the wall of the cavity 17 tofurther withdraw the latch plate and entirely disengage said hasp orhook portion from the keepers, whereupon the cover of the trunk carryingthe additional plate 5 with the keepers thereon may be raised. When thelatch plate has been retracted to its eXtreme ineffective position, thelower spacing lug 14 will engage in the notch 16 of the spring 18whereby said latch plate will be retained in its ineffective positionuntil such time when the key is again inserted in the lock to raise thespring 13 from its engagement with said lug. ln sliding the latch' plateto its locked position, the key is turned in the opposite direction andthe bit thereof, after engaging and raising the spring 18, contacts withthe wall of the cavity 17 to cause said latch plate to slide a shortdistance within the casing. This first turn of the key, will positionthe longer locking member 11 into engagement with one of the keepers 6and will also disposethe central point 19 of the latch plate slightly tothe left of the key post 27 so that upon the second turning of the key,the bit of the latter will cont-act with the wall of the cavity 18,immediately adjacent said point 19. Upon the continued turning of thekey clockwise, the latch plate will be caused to travel toward the righthand side of the casing and the free end of the bit of said key willcontact lightly with the projected end 22 of the dog 21, the latteryielding in view of the spring 25, so as not to interfere with themovement of the key and latch plate. Upon the completion of the secondturning of the key in this direction,

the latch plate will assume its complete locked position, as shown inFig. 1 of the drawing.

From the construction and operation of the device as described, theoperation of the lock to its effective position will be obvious, but itmust be here stated that in its latter operation, the key effectivelycoperates with the walls of the cavities 17 and 18 of the latch plate9.-

From the foregoing it will be seen that I have provided a simple,inexpensive and eliicient trunk lock, but while I have par ticularlydescribed this lock as being used in connection with a trunk, it will beunderstood that the same is equally well adapted for use in any otherconnection desired. It will also be understood that various changes inform, proportion and in the minor details of construction may beresorted to without departing from the spirit or sacrificing any of thefeatures of the invention.

Having thus described this invention, what is claimed is 1. A lock ofthe class described comprising a casing, a latch plate slidably mountedtherein and provided with concave recesses in the lower edge thereof,locking members carried on the upper edge of said latch plate, a leafspring member mounted in the casing and cooperating with said latchplate to retain the same in various adjusted positions, an arcuate dogpivotally mounted on said latch' plate immediately adjacent one of therecesses therein, an additional spring member carried on the latch plateand normally engaged with said dog thereon to position a portion of thelatter in alinement with the wall of said last mentioned recess and topermit one end of said dog to extend within said recess, and meansadapted for introduction into the casing to coperate with the firstmentioned spring member, dog and latch plate to move the latter to itslocked and unlocked positions.

2. A lock of the class described comprising a casing, one wall of whichis provided with a horizontal guide strip thereon, a latch plateprovided with a pair of upper spacing lugs resting on said guide stripand adapted to slide thereon, the lower edge of said latch plate beingprovided with a pair of recesses, an additional spacing lug formed atthe lower edge of said plate adjacent said recesses, a spring membersecured to the referred to wall of the casing and having a portionthereof extended into engagement with the last referred to lug on saidlatch plate, said spring member having the engaging edge thereofprovided with a pair of notchesarranged at predetermined points thereonand adapted to receive the lug therewithin, a dog pivotally mounted onthe latch plate adjacent the lower edge thereof, a spring member carriedon said latch plate and engaged with said dog to normally dispose aportion thereof in one of the recesses of the latch plate, lockingmembers carried on said latch plate, and means adapted for introductioninto the casing to coperate with said first referred to spring member,dog and latch plate to move the latter to its locked and unlockedpositions.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

ALEXIS ANTIFAEV.

Vitnesses VAssIL SOWINKOFF, Fano KoNnIN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, .'D. C.

